Author
Topic: Unable to keep aspect ratio (Read 20305 times)

Hi all newbie here need help with aspect ratio settings.I have a mp4 video file I'm trying to crop and add second file to, but the output keeps reverting to aspect ratio of 1:1 and not the original of 16:9. I have tried all the settings under Mpeg4 AVC (x264) encoder configure such as "As Input" and "Predefined Aspect Ratio" of 16:9 PAL. Also tried to use resize under filters to set aspect ratio to 16:9 and also resize image to 1024 x 576 but none of these work. The application does not seem to even remember settings, if I go straight back into settings then they have reverted to default.

Jan thanks for the link but I had already read and re-read that thread and although it looked promising I still cant get Avidemux to do anything with the output apart from 1:1 Aspect Ratio. I already tried adding adm.addVideoFilter("glResize", "width=1024", "height=576") into a py files but application just crashes when I try and run it.Also cannot understand why Avidemux will not remember and use setting you can set in GUI, why are they there if they can't be used?

I already tried adding adm.addVideoFilter("glResize", "width=1024", "height=576") into a py files but application just crashes when I try and run it.Also cannot understand why Avidemux will not remember and use setting you can set in GUI, why are they there if they can't be used?

1) I don't add the parameters, I use the avidemux GUI and change the settings in there and then save the the tiny py project and edit out the parts loading video and setting markers.2) I have no knowledge on developers/programming/decisions. I, as user, try to have it working with what is provided.When selecting opengl resize on a loaded video in video filter in GUI does it work then while playing the video in preview?This is a specific example mpeg-ts to mkv:

Thanks Jan but there is the problem I do make the changes in the GUI but they don't get remembered do they also don't get saved in the project file.Looks like I will have to try another tool as suggested.

I have the same problem using 2.6.0 when using the Mpeg4 AVC (x264) mode. I have a video @ 720 x 576 PAL 16:9 aspect ratio and 2.6.0 ALWAYS encodes it at 1:1, even after I set it to 16:9. This did not happen in 2.5.6. Basically, it ignores the ratio setting for anything other than 1:1. Also, the PSP and iPhone presets are broken.

And no, I do not want to resize the video as a work around.

I'm running the 64 bit version on Win7-64 with 16GB RAM and an AMD 8350 CPU

You're correct for the aspect ratio.This is broken for 2.6 on Mpeg4 AVC (x264) in x264 Configuration on Tab [Output 1] watever you select on Pixel Aspect Ratio, you can't change it.PSP and iPhone presets are not implemented or even present.

Due to the devices i do own, i have to use mp4(v2) for compatibility reasons as the output container. The input material is a by MediaPortal TV Server recorded DVB-S2 HD stream in a .ts container. With 2.6.0, it is possible to select "As Input". Since 2.6.1, it's grey and can't be selected anymore.

I want to convert MPEG2 files to MKV (MPEG4 AVC c264 video, AAC sound). The aspect ratio that I set anywhere has no influence, it still converts to format like 4:3 or so. It even cuts a part of the video at bottom to fit it, but it seems that this is cut by avidemux decoder (Lavcodec). Should I create a new thread or write someone specific?